-84.78% is the change from 966 to 147
Calculation steps:
[( 147 - 966 ) ÷ 966] x 100 = -84.78%
Formula
Percentage change = [(147 - 966) / 966] x 100
Subtract the new number by the original number
147 - 966 = -819
-819 ÷ 966 = -0.8478260869565217
-0.8478260869565217 x 100 = -84.78%